1 / 76

Nadya Tolokonnikova, Russian political activist and member of the Russian feminist protest punk rock group Pussy Riot, poses on the set of the immersive theatre experience "Inside Pussy Riot" to be presented to coincide with the Saatchi Gallery's "Art Riot: Post Soviet Actionism exhibition" during a photo call at the Saatchi Gallery in London on November 11, 2017.

Nadya Tolokonnikova, Russian political activist and member of the Russian feminist protest punk rock group Pussy Riot, poses on the set of the immersive theatre experience "Inside Pussy Riot" to be presented to coincide with the Saatchi Gallery's "Art Riot: Post Soviet Actionism exhibition" during a photo call at the Saatchi Gallery in London on November 11, 2017.

London rioters battle police

A wave of violence and looting has raged across London since Saturday, as authorities struggled to contain the worst unrest since the 1980s.